public void RecycleCell(NativeCell view, FastCell newCell)
{
if (CellItemsByCoreCells.ContainsKey(view))
{
var reusedItem = CellItemsByCoreCells[view];
if (OriginalBindingContextsForReusedItems.ContainsKey(newCell))
{
reusedItem.BindingContext = OriginalBindingContextsForReusedItems[newCell];
}
else
{
reusedItem.BindingContext = newCell.BindingContext;
}
}
}
public bool IsCached(NativeCell view)
{
return(CellItemsByCoreCells.ContainsKey(view));
}
public void CacheCell(FastCell cell, NativeCell view)
{
CellItemsByCoreCells[view] = cell;
OriginalBindingContextsForReusedItems[cell] = cell.BindingContext;
}
public override UITableViewCell GetCell(Cell item, UITableViewCell reusableCell, UITableView tv)
{
cellId = cellId ?? new NSString(item.GetType().FullName);
var cellCache = FastCellCache.Instance.GetCellCache(tv);
var fastCell = item as FastCell;
var nativeCell = reusableCell as NativeCell;
var view = item as FastCell;
if (reusableCell != null && cellCache.IsCached(nativeCell))
{
cellCache.RecycleCell(nativeCell, fastCell);
if (fastCell.SelectionMode)
{
nativeCell.SelectedBackgroundView = new UIView
{
BackgroundColor = view.SelectedBackgroundColor.ToUIColor(),
};
}
else
{
//nativeCell.SelectedBackgroundView = new UIView
//{
// BackgroundColor = UIColor.Clear,
//};
nativeCell.SelectionStyle = UITableViewCellSelectionStyle.None;
}
}
else
{
var newCell = (FastCell)Activator.CreateInstance(item.GetType());
newCell.BindingContext = item.BindingContext;
newCell.Parent = item.Parent;
if (!newCell.IsInitialized)
{
newCell.PrepareCell();
}
nativeCell = new NativeCell(cellId, newCell);
cellCache.CacheCell(newCell, nativeCell);
if (fastCell.SelectionMode)
{
nativeCell.SelectedBackgroundView = new UIView
{
BackgroundColor = view.SelectedBackgroundColor.ToUIColor(),
};
}
else
{
nativeCell.SelectionStyle = UITableViewCellSelectionStyle.None;
}
}
var parentListview = fastCell.Parent as MvvmAspire.Controls.ListView;
if (parentListview != null)
{
parentListview.Raise("ItemAppearing", new ItemVisibilityEventArgs(item.BindingContext));
}
return(nativeCell);
}
